1 Internet-Scale Systems Research Group Eric Brewer, David Culler, Anthony Joseph, Randy Katz, Steven McCanne Computer Science Division, EECS Department University of California, Berkeley, CA Cellular “Core” Network S. S. 7 NinjaICEBERG MASH Millennium

2 Project Synergies BARWAN Wireless Overlay Networks Scalable Proxies BARWAN Wireless Overlay Networks Scalable Proxies MASH Collaboration Applications Active Services MASH Collaboration Applications Active Services RTPGateway Service Discovery vic, vat, wb TranSend TACC Model Wireless Access MASH Toolkit Active Services Model NOW/Millennium Computing Platform NOW/Millennium Computing Platform NINJA Scalable, Secure Services Computation in the Network “Smart Spaces” as an app Event-Response Programmable Access NINJA Scalable, Secure Services Computation in the Network “Smart Spaces” as an app Event-Response Programmable Access

3 Mission Statement Lead the evolution of the Internet through fundamental protocol and systems research –Grounded in real-world prototypes that are deployed across diverse user communities –Unify on-going and future research projects –Facilitate technology transfer and standardization –Work closely with industrial partners in an open laboratory environment

4 Strategy Leverage interdisciplinary systems expertise in network-based applications, scalable services, network-connected computing platforms Work collaboratively across applications, OS, networks, architecture Interact closely with industry, to obtain early access to leading edge technologies and facilitate tech transfer Cultivate ties with Bay Area (and beyond!) networking and systems research community

5 Internet-Scale Systems Extremely large, complex, distributed, heterogeneous, with continuous and rapid introduction of new technologies Feasible architectures –Decentralized, scalable algorithms –Dynamically deployed agents where they are needed –Incremental processing/communications growth –Cross-layer protocol design and optimization Prototyping and deployment-driven

6 Research Focus Protocols –TCP enhancements –Link-layer protocols –Multicast –Real-time streaming –Web transport Security and E- Commerce Infrastructure Services –Scalability –Availability –Pervasive Computing –Mobility –Proxies/Transcoders/ Network Agents –Active Services Novel Applications and Architectures

7 Emerging Distributed System Architecture Spanning Processing and Access Computing and Communications Platform: Millennium/NOW Distributed Computing Services: Ninja Active Services Architecture MASH Media Processing Services Distributed Videoconferencing Room-scale Collaboration TranSend Extensible Proxy Services ICEBERG Computer-Telephony Services Speech and Location Aware Applications Personal Information Management and “Smart Spaces”

8 Network Infrastructure GSM BTS Millennium Cluster WLAN Pager IBM WorkPad CF788 MC-16 Motorola Pagewriter 2000 Text Speech Image/OCR 306 Soda 326 Soda “Colab” 405 Soda Ericsson Smart Spaces Personal Information Management Fax Experimental Testbed

9 326 Soda The MASH Challenge: Heterogeneous Collaboration Environments UC-Net / UC-MBone CAIRN UCLA UCB PARC LBL MIT DARPA NIMA ISDN Internet (MBone) UCL T1 OC-3c POTS ISDN Pen-Based PCs

10 Project Goals and Approach Desired New Capabilities –Beyond Desktop Collaboration: Room-scale interaction –Beyond Continuous A/V and Image- Exchange: Active objects, distributed simulation –Beyond Ephemeral Interaction: Integrated Archive, asynchronous join and catch-up Harness Emerging Enabling Technologies –Multicast Protocols –Layered Video –Real-Time Proxies –Active Services A Comprehensive Architecture –Coordination Framework –Proxy/Gateway Architecture –Active Objects –Archive –Virtual Room Testbed Software Infrastructure –MASH Toolkit –Scalable Reliable Multicast (SRM) Framework

11 New Collaboration Tools Collaborator Plug-in Version

12 Live Board Rack spkr Virtual Room Testbed Live Board Rack spkr mic Room device controllers & XML-based control UIs

13 Network of Workstations (NOW) Project Breakthrough design techniques for large- scale systems Low-overhead interface to enable emerging networks –Active Messages Explore novel OS designs World-leading cluster Basis for Inktomi

14 Millennium Project Goals Enable major advances in Computational Science and Engineering –Simulation, Modeling, and Information Processing becoming ubiquitous Explore novel design techniques for large, complex systems –Fundamental Computer Science problems ahead are problems of scale Develop fundamentally better ways of assimilating and interacting with large volumes of information –and with each other Explore emerging technologies –networking, OS, devices

15 Campus-wide Millennium Testbed PDAs Cell Phones Future Devices Wireless Infrastructure Gigabit Ethernet Desktop PCs Servers Clusters Massive Cluster

16 Smart Appliances/Thin Clients Qualcomm PDQ Phone PDA PCS

17 Starting Point: Transcoding Proxies Scalable Servers Laptops, Desktops Info. Appliances Network Computers Spoon feed web pages to PDAs Transformation, Aggregation, Caching, and Customization (TACC)  Scalability and availability  Limited customizability and locality and no persistence Legacy Servers

18 “ProActive” Infrastructure Create a framework that enables programmatic generation and composition of services from strongly typed reusable components Capabilities –Plug and play wide-area software components –Automatic discovery, composition, and use –Powerful operators »Clusters, databases, and agents –Viable component economics »Subscription, pay per use –Supports diverse devices, sensors, actuators –Connects everything »Ubiquitous support for access and mobility

19 Ninja Platform Create a framework that enables programmatic generation and composition of services from strongly typed reusable components Bases, Active Routers, and Units Wide-area paths formed out of strongly- typed components Wide-Area Path

20 ICEBERG Project Goals Demonstrate ease of new service deployment –Packet voice for computer-telephony integration –Speech- and location-enabled applications –Complete interoperation of speech, text, fax/image across the four P’s: PDAs, pads, pagers, phones) –Mobility and generalized routing redirection Demonstrate new system architecture to support innovative applications –Personal Information Management »Universal In-box: , news, fax, voice mail »Notification redirection: e.g., , pager –Home networking and control of “smart” spaces, sensor/actuator integration »Build on experience with A/V equipped rooms in Soda Hall

21 Policy-based Location-based Activity-based Speech-to-Text Speech-to-Voice Attached- Call-to-Pager/ Notification -to-Speech All compositions of the above! Universal In-box Transparent Information Access

22 Participating ISRG Sponsors Service Companies Computer Companies Communications Companies

23 Summary and Conclusions Internet-Scale Systems Research Group: Emerging Network-centric Distributed Architecture spanning processing and access Open, composable services architecture--the wide-area “operating system” of the 21st Century Beyond the desktop PC: information appliances supported by infrastructure services--multicast real- time media plus proxies for any-to-any format translation and delivery to diverse devices Common network core: optimized for data, based on IP, enabling packetized voice, supporting user, terminal, and service mobility